bytes of the string.
</p>

<pre class="grammar">
append(s S, x ...T) S  // T is the element type of S
</pre>

<p>
If the capacity of <code>s</code> is not large enough to fit the additional
values, <code>append</code> allocates a new, sufficiently large underlying
array that fits both the existing slice elements and the additional values.
Otherwise, <code>append</code> re-uses the underlying array.
</p>

<pre>